Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995a%26as..114..367b&link_type=abstract
Astronomy and Astrophysics Supplement, v.114, p.367
Astronomy and Astrophysics
Astrophysics
22
Atomic Data
Scientific paper
Electron excitation collision strengths for fine-structure transitions involving the four lowest 3d^5^ terms (^6^S, ^4^G, ^4^P, ^4^D) in vanadium-like ions Mn III, Fe IV, Co V and Ni VI are calculated using R-matrix techniques. All five sextet and quartet 3d^5^ target terms are included in the expansion of the total wavefunction. Fine-structure collision strengths are obtained from an algebraic transformation of the reactance matrices. These collision strengths are then averaged over a Maxwellian velocity distribution to obtain effective collision strengths as a function of electron temperature. To our knowledge, these are the first published data for these processes.
Berrington Keith A.
Pelan J. C.
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